Linked Life Data

6355095

Source:http://linkedlifedata.com/resource/pubmed/id/6355095

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
21
pubmed:dateCreated
1983-12-17
pubmed:abstractText
A highly purified monophosphoryl lipid A, TLC-3 fraction obtained from the lipopolysaccharides of the heptoseless mutant Salmonella typhimurium G30/C21 was converted to the dimethyl pentatrimethylsilyl derivative and analyzed by proton NMR spectroscopy at 400 MHz. Substantial downfield shifts of the resonances for protons at the 3- and 3'-carbons of the glucosamine disaccharide to 5.06 and 5.15 ppm, respectively, occurred from the normal range of 3.5-4.1 ppm, indicating that these two positions on the sugar rings were acylated. Significant downfield shift of the resonances for protons at the 4- and 6'-carbons did not occur, indicating the absence of acyl groups at these two positions. Since positive ion fast atom bombardment mass spectrometry previously established the presence of hydroxymyristoyl and myristoxymyristoyl esters at the reducing end and distal subunits, respectively, these acyl groups must be attached to the oxygen of the corresponding 3- and 3'-carbons of lipid A. With these results, we can now describe the complete structure of the monophosphoryl lipid A, TLC-3 from S. typhimurium.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Nov
pubmed:issn
0021-9258
pubmed:author
pubmed:issnType
Print
pubmed:day
10
pubmed:volume
258
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
12801-3
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1983
pubmed:articleTitle
Complete structure of lipid A obtained from the lipopolysaccharides of the heptoseless mutant of Salmonella typhimurium.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, Non-P.H.S.